So the big weekend news is that blonde society bombshell Chelsy Davy is dating the eligible, late-twenties son of a high profile couple.

So she’s back with Prince Harry?

Not quite, he’s still with Cressie, a slightly younger blonde society bombshell.

Who are the controversial public couple then?

That would be former Labour minister and Blair confidante Dame Tessa Jowell and her lawyer husband David Mills.

Well, we’ve heard of Tessa but who is this Mills character?

He’s the bloke who got into a spot of bother when he was caught up in one of Silvio Berlusconi’s corruption trials leading to a split with Jowell in 2006. He was later cleared and they are back together now. She received a nod in the New Year Honours too.

So who is this son, and how has he got his hands on Harry’s ex?

He’s called Matthew Mills, he’s 29 and he used to play golf quite well.

How well?

Hard to know. He used to be a pro on the European Circuit, which is pretty good. And he came 55th in the glamorous sounding Madeira Islands Open in 2009, earning $2,310. But now he’s a banker.

Haven’t we heard about his girlfriends before?

Yes, the eagle-eyed might notice that he was the 17-year-old who mourned his tragic 16-year-old girlfriend Amelia Ward in 2001, when the judge’s daughter was killed by a rockfall in South Africa. He spoke movingly at her funeral.

But hang on, isn’t Chelsy supposed to be dating Bismarck’s great-great-grandson or something?

No, that was never a thing. And judging by a picture of Mills cuddling her at a South African airport that emerged over the weekend, she’s put her flings with eligible boys like art dealer Blaise Patrick behind her.

So if this gets really serious, who is facing the more out-there in-laws?

David Mills’s father was a senior British spy who ran operations out of Gibraltar after the Second World War and apparently once foiled a revolution in Cuba. So that’s good. Chelsy’s father is a powerful Zimbabwean landowner who leads expensive expeditions shooting big game on his vast lands on the low veldt and has been accused of “sustaining” Robert Mugabe’s regime.